MCSIX vs. MIEIX

Last updated Jun 3, 2026

MCSIX (MFS Commodity Strategy Fund) and MIEIX (MFS International Equity Fund Class R6) are both mutual funds - MCSIX is a Commodities fund managed by MFS, while MIEIX is a Foreign Large Cap Equities fund managed by MFS. Over the past 10 years, MCSIX returned 7.37%/yr vs 9.81%/yr for MIEIX. At a 0.31 correlation, their price movements are largely independent. MCSIX charges 0.90%/yr vs 0.68%/yr for MIEIX.

Performance

MCSIX vs. MIEIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Commodity Strategy Fund (MCSIX) and MFS International Equity Fund Class R6 (MIEIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MCSIX achieves a 24.31% return, which is significantly higher than MIEIX's 3.08% return. Over the past 10 years, MCSIX has underperformed MIEIX with an annualized return of 7.37%, while MIEIX has yielded a comparatively higher 9.81% annualized return.

MCSIX

• 1D: 1.12%
• 1M: -0.88%
• YTD: 24.31%
• 6M: 25.37%
• 1Y: 39.41%
• 3Y*: 17.19%
• 5Y*: 11.52%
• 10Y*: 7.37%

MIEIX

• 1D: -0.66%
• 1M: 2.55%
• YTD: 3.08%
• 6M: 5.78%
• 1Y: 9.36%
• 3Y*: 12.01%
• 5Y*: 7.07%
• 10Y*: 9.81%

*Multi-year figures are annualized to reflect compound growth (CAGR)

MCSIX vs. MIEIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MCSIX MFS Commodity Strategy Fund	24.31%	18.47%	5.08%	-6.13%	13.40%	27.55%	-0.02%	7.79%	-12.79%	3.65%
MIEIX MFS International Equity Fund Class R6	3.08%	23.22%	4.13%	19.06%	-14.82%	15.13%	11.11%	28.42%	-10.66%	28.01%

Correlation

The correlation between MCSIX and MIEIX is 0.01, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.01
Correlation (3Y) Calculated over the trailing 3-year period	0.17
Correlation (5Y) Calculated over the trailing 5-year period	0.22
Correlation (10Y) Calculated over the trailing 10-year period	0.27
Correlation (All Time) Calculated using the full available price history since Jun 3, 2010	0.31

Over the past year, the correlation between MCSIX and MIEIX has dropped to 0.01 - well below their long-term average of 0.31, suggesting their price drivers have been diverging.

Return for Risk

MCSIX vs. MIEIX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

MCSIX

MCSIX Risk / Return Rank: 79
MCSIX Sharpe Ratio Rank: 82
MCSIX Sortino Ratio Rank: 63
MCSIX Omega Ratio Rank: 73
MCSIX Calmar Ratio Rank: 92
MCSIX Martin Ratio Rank: 86

MIEIX

MIEIX Risk / Return Rank: 10
MIEIX Sharpe Ratio Rank: 9
MIEIX Sortino Ratio Rank: 9
MIEIX Omega Ratio Rank: 9
MIEIX Calmar Ratio Rank: 9
MIEIX Martin Ratio Rank: 10

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

MCSIX vs. MIEIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Commodity Strategy Fund (MCSIX) and MFS International Equity Fund Class R6 (MIEIX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	MCSIX	MIEIX	Difference
Sharpe ratio Return per unit of total volatility	2.66	0.81	+1.85
Sortino ratio Return per unit of downside risk	3.33	1.21	+2.12
Omega ratio Gain probability vs. loss probability	1.48	1.15	+0.33
Calmar ratio Return relative to maximum drawdown	5.06	0.94	+4.13
Martin ratio Return relative to average drawdown	16.54	3.30	+13.23
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MCSIX vs. MIEIX - Sharpe Ratio Comparison

The current MCSIX Sharpe Ratio is 2.66, which is higher than the MIEIX Sharpe Ratio of 0.81. The chart below compares the historical Sharpe Ratios of MCSIX and MIEIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	MCSIX	MIEIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.66	0.81	+1.85
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.33	0.46	-0.13
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.28	0.62	-0.33
Sharpe Ratio (All Time) Calculated using the full available price history	0.12	0.46	-0.34

Drawdowns

MCSIX vs. MIEIX - Drawdown Comparison

The maximum MCSIX drawdown since its inception was -64.20%, which is greater than MIEIX's maximum drawdown of -53.13%. Use the drawdown chart below to compare losses from any high point for MCSIX and MIEIX.

Drawdown Indicators

	MCSIX	MIEIX	Difference
Max Drawdown Largest peak-to-trough decline	-64.20%	-53.13%	-11.07%
Max Drawdown (1Y) Largest decline over 1 year	-8.15%	-11.26%	+3.11%
Max Drawdown (3Y) Largest decline over 3 years	-9.74%	-13.43%	+3.69%
Max Drawdown (5Y) Largest decline over 5 years	-37.61%	-28.07%	-9.54%
Max Drawdown (10Y) Largest decline over 10 years	-37.61%	-31.35%	-6.26%
Current Drawdown Current decline from peak	-3.23%	-1.65%	-1.58%
Average Drawdown Average peak-to-trough decline	-33.29%	-8.98%	-24.31%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.50%	3.19%	-0.69%

Volatility

MCSIX vs. MIEIX - Volatility Comparison

MFS Commodity Strategy Fund (MCSIX) has a higher volatility of 4.84% compared to MFS International Equity Fund Class R6 (MIEIX) at 3.48%. This indicates that MCSIX's price experiences larger fluctuations and is considered to be riskier than MIEIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MCSIX	MIEIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.84%	3.48%	+1.36%
Volatility (6M) Calculated over the trailing 6-month period	13.70%	10.21%	+3.49%
Volatility (1Y) Calculated over the trailing 1-year period	15.93%	13.20%	+2.73%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	34.65%	15.34%	+19.31%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.03%	15.94%	+10.09%

MCSIX vs. MIEIX - Expense Ratio Comparison

MCSIX has a 0.90% expense ratio, which is higher than MIEIX's 0.68% expense ratio.

Dividends

MCSIX vs. MIEIX - Dividend Comparison

MCSIX's dividend yield for the trailing twelve months is around 12.90%, more than MIEIX's 2.60% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MCSIX MFS Commodity Strategy Fund	12.90%	16.04%	3.30%	2.21%	27.42%	56.01%	0.88%	1.87%	3.50%	3.14%	0.61%	0.47%
MIEIX MFS International Equity Fund Class R6	2.60%	2.68%	1.47%	1.67%	1.26%	5.40%	1.00%	3.12%	1.63%	1.85%	1.78%	1.71%

Frequently Asked Questions

Can I hold both MCSIX and MIEIX in my portfolio?

MCSIX and MIEIX have a correlation of 0.01, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MCSIX or MIEIX?

MCSIX has higher volatility (4.84%) compared to MIEIX (3.48%). In terms of maximum drawdown, MCSIX dropped -64.20% vs MIEIX's -53.13%.

Which has better risk-adjusted returns?

MCSIX currently has the higher Sharpe Ratio (2.66 vs 0.81), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.